Light-treatment apparatus



E. C. FEYRER.v LIGHT TREATMENT APPARATUS. APPLICATION FILED AUG. 14, 1919.

WITNESSES Patented Oct. 5, 1920.,

UNITED STATES ERNEST C. FEYRER, 0F PITTSBURGH, PENNSYLVANIA.

LIGHT-TREATMENT APPARATUS.

Specification of Letters Patent.

Patented Oct. 5, 1920.

Application filed August 14, 1919. Serial No: 317,406.

T 0 all whom it may concern Be it known that I, ERNEST C. FEYRER, aresident of Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement inLight-Treatment Apparatus, of which the following is a specification.

This invention relates to light treatment apparatus for utilizingelectric light for medical and therapeutic purposes. Its object is toprovide an apparatus of simple construction and easy to operate, wherebylight can be confined to the desired area of the part to be treated andwhich is readily adjustable so that the area subjected to the light andheat can be increased or decreased readily.

This invention is an improvement upon the device illustrated anddescribed in my Patent No. 1,232,908, granted July 10, 1917.

In the accompanying drawing Figure 1 is a side elevation of theapparatus; Fig. 2 is a horizontal longitudinal section through thelighting cylinder; Fig. 3 is a transverse section therethrough on theline 38, Fig. 2, the lamp and lamp socket being omitted; and Figs. 4:and 5 are similar views illustrating modifications.

The present apparatus, like that of my former patent, includes aportable, adjustable support comprising a tubular standard 1, mountedupon a base comprising radial arms 2 provided with casters 3. A verticalrod or upper standard section 4 telescopically and rotatably fits thetubular standard 1 and is arranged to be locked in adjusted position bythe clamp 5. The upper end of the rod or standard 4 is provided with aT-fitting 6 having a horizontal opening in which the horizontal shankmember 7 of the light cylinder has a sliding and rotatable fit. baidshank can be adjustably fixed in the member 6 by means of clamping screw18. The outer end of the shank 7 has secured thereto a T-fitting 9 towhich are secured tubular fork arms 10 having sections 11 extendingoutwardly and parallel to each other, provided at their ends withportions 12 projecting toward each other,

and on which the light drum or cylinder is mounted. On the inner ends ofone or both of the portions 12 is mounted a socket 14 for receiving alamp bulb 15. The light drum comprises a cylindrical body 16 which Iextends for slightly more than 180 of arc and which is connected toheads 1* which are rotatably mounted on the inwardly pro jpcting endportions 12 of the fork 10, 11. 1 uts 18 on said extensions outside ofthe heads, provide frictional means against the heads of the drum toprevent its too free rotation. The open side 'of the drum is closed bymeans of an arcuate shutter 20, the inner surface of which, and also ofthe drum body portion 16 is a reflecting surface. The ends of thisshutter 20-are secured to end members 21 which are rotatably mounted onthe projecting end portions 12 of the fork 10, 11, between the cylinderheads 17 and the lamp socket 14 (or cap 22 when only one lamp is used).The exposed edge of the shutter 20 is provided with a handle 23 andtheopposite edge of the arcuate body portion of the drum is providedwith a handle 24, thus providing convenient means for closing the drumentirely or opening the front thereof to any desired extent. Preferablyone or both edges of the shutter and also the arcuate body portion ofthe drum are stiffened, such as by means of beads 25, Figs. 3 and 4, orribs 25, Fig. 5.

The end members 21 for the shutter-in Figs. 2 and 3 are shown ascup-shaped circular inner heads. They may, however, be merely segmentsof circles, or even skeleton members such as shown at 21, Fig' 4, ormerely rings as shown at 21", Fig. 5. In the latter modification theseend rings 21 bear against the inwardly projecting strengthening ribs 25of the drum casing 16 and are thereby guided so that the shutter can beturned to open and closed position without being trunnioned directly onthe members 12 as in the other forms. Inasmuch as the drum body 16extends through an arc slightly in excess of 180 these ribs 25 pre ventdisplacement of the shutter.

The conductors 30 for the lamps are brought into the tubular fork 10, 11at any desired point and lead through the arms thereof to the socket orsockets.

By means of the apparatus described the light can be directed in anydirection and at any angle, and the light opening is readily adjustableto vary the'extent of the area to be subjected to the light treatment.

The construction of the cylinder, providing this adjustable opening isvery simple, compact and durable.

It will, of course, be understood that the light drum need not be a truecylinder.

I claim:

1. Light treating apparatus comprising a drum open on one side andprovided with end heads, a forked support for said drum having inwardlyturned ends upon which said heads are rotatably mounted, and an arcuateshutter fitting within said drum and provided with end members rotatablymounted on the inner ends of the inwardly turned portions of said fork.

2. Light treating apparatus comprising a drum open on one side andprovided with end heads, a forked support for said drum having inwardlyturned ends upon which said heads are rotatably mounted, an areaateshutter fitting within said drum and provided with end members rotatablymounted on the inner ends of the inwardly turned portions of said fork,and handles on the exposed edge of said shutter and the opposite edge ofthe drum.

In testimony whereof I have hereunto set my. hand.

' ERNEST C. FEYRER. WVitnesses JOHN J. SWEENEY, J. W. NICHOLLS.

